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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts705. ------. [FISCHER, F., AND TROPSCH, H.] [Process for Producing Paraffin Hydrocarbons.] Austrian Patent 119,038, Apr. 15, 1930, Aug. 15, 1930. See British Patent 255,818 (abs. 698) and French Patent 613,200 (abs. 706). |